A carton opening mechanism for a cigarette rod packing machine

Abstract

This utility model proposes a carton opening mechanism for a cigarette packing machine, comprising: a frame, a main swing arm, a connecting plate, and a secondary swing arm assembly. The frame is installed on the ground, and a carton storage compartment is mounted on the frame. The middle part of the main swing arm is rotatably mounted on the frame below the carton storage compartment, and one end of the main swing arm is connected to the frame via a first telescopic rod. The other end of the main swing arm is mounted on a slide rail. The lower part of the connecting plate is slidably mounted on the slide rail via a slider, and the connecting plate is connected to the main swing arm via a second telescopic rod. This utility model, by setting a rotatable main swing arm below the carton storage compartment, allows the carton to be removed from the carton storage compartment using a suction cup, and then horizontally displaced via the second telescopic rod, aligning the opening of the carton with the stacked cigarette packs, facilitating subsequent cigarette packing. Furthermore, the secondary swing arm body, with the cooperation of a third and fourth telescopic rod, can rotate within a 180° range to better pick up the carton and unfold it after picking it up, quickly adapting to cartons of different sizes and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging equipment technology, and in particular to a carton opening mechanism for a cigarette packing machine. Background Technology

[0002] Traditionally, after cigarettes are packaged, they still need to be manually placed into cardboard boxes for packing. Manual packing is inefficient and prone to errors. Therefore, many cigarette manufacturers have begun using automated equipment for packing. The cardboard boxes used for cigarette packaging are usually flattened before being sent to the production line. Before packaging, the boxes need to be moved to the packing station and then unfolded. For example, Chinese Patent Application No. 202011270317.9 discloses an intelligent vertical automatic carton packing and sealing machine, which includes a frame, feeding device, sealing device, opening device, sorting device, sealing device, and conveyor. The device has a conveying device installed at one end of the frame and an opening device installed on one side of the frame. The opening device unfolds the carton through the interaction of suction cups, suction racks, and forming arc plates. However, the structure of this device needs to be adapted to cartons of uniform size, and it cannot be quickly adjusted when changing packaging materials. Therefore, it is necessary to design a carton opening mechanism for cigarette packing machines. After the carton is attracted by the main swing arm and suction cups, it is opened by the auxiliary swing arm assembly. This opening action is simple and efficient, and the position can be adjusted within a certain range to quickly adapt to cartons of different sizes and improve production efficiency. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a carton opening mechanism for a cigarette packing machine. After the carton is adsorbed by the main swing arm and suction cup, it is opened by the auxiliary swing arm assembly. This opening action is simple and efficient, and the position can be adjusted within a certain range to quickly adapt to cartons of different sizes, thereby improving production efficiency.

[0004] This utility model is achieved through the following technical solution: This utility model proposes a carton opening mechanism for a cigarette packing machine, comprising: a frame, a main swing arm, a connecting plate, and a secondary swing arm assembly. The frame is installed on the ground, and a carton storage compartment is provided on the frame. The middle part of the main swing arm is rotatably mounted on the frame below the carton storage compartment, and one end of the main swing arm is connected to the frame via a first telescopic rod. A slide rail is installed on the other end of the main swing arm. The lower part of the connecting plate is slidably mounted on the slide rail via a slider, and the connecting plate is connected to the main swing arm via a second telescopic rod. Side plates are provided on both sides of the connecting plate, and the lower part of the secondary swing arm assembly is connected to the side plates. Suction cups are provided on the upper part of the side plates and the end of the secondary swing arm assembly.

[0005] Furthermore, the side plate is provided with a first transmission block, the upper part of which is hinged to the side plate, and the lower part of which is slidably connected to the arc-shaped guide rail on the side plate via a first guide rod. The upper part of the side plate is provided with a second guide rod, and the first guide rod and the second guide rod are connected by two first connecting rods. The first connecting rod is provided with an elongated hole, and the first connecting rod is slidably connected to the second guide rod through the elongated hole. One end of the first connecting rod is also hinged to the first guide rod. The two sides of the auxiliary swing arm assembly are respectively fixedly connected to the first connecting rod.

[0006] Furthermore, the connecting plate is provided with a third telescopic rod, and the telescopic end of the third telescopic rod is connected to one side of the first transmission block through a second connecting rod.

[0007] Furthermore, the auxiliary swing arm assembly includes a fourth telescopic rod and an auxiliary swing arm body. One end of the fourth telescopic rod is fixedly connected to the first connecting rod, and the other end of the fourth telescopic rod is provided with a second transmission block. The lower part of the second transmission block is connected to the telescopic end of the fourth telescopic rod through a third connecting rod. The auxiliary swing arm body is fixedly connected to the second transmission block.

[0008] Furthermore, the upper part of the auxiliary swing arm body is provided with an air guide block, the air guide block is hollow inside, the air guide block is fixed to the end of the auxiliary swing arm body, and the air guide block is perpendicular to the auxiliary swing arm body. The suction cup is fixed on the air guide block, and the suction cup is connected to the inner cavity of the air guide block.

[0009] Furthermore, the first telescopic rod is an electric telescopic rod, while the second, third, and fourth telescopic rods are pneumatic telescopic rods.

[0010] Furthermore, a support plate is provided on the side plate, and the suction cups are located at the four corners of the support plate. The height of the support plate is 1cm to 2cm lower than the height of the suction cups.

[0011] The beneficial effects of this utility model are as follows: By setting a rotatable main swing arm below the cardboard box, the cardboard box can be taken out of the cardboard box by suction cup, and horizontal displacement is achieved by the second telescopic rod, so that the opening of the cardboard box is aligned with the stacked cigarette packs after opening, which facilitates the subsequent action of pushing cigarettes into the box. In addition, the main body of the auxiliary swing arm can rotate within a range of 180° with the cooperation of the third and fourth telescopic rods, so as to better pick up the cardboard box and unfold it after picking it up. It can quickly adapt to cardboard boxes of different sizes and improve production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the installation of this utility model on the frame; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the slide rail and slider of this utility model; Figure 4 This is a structural schematic diagram showing the position of the first transmission block of this utility model; Figure 5 This is a schematic diagram of the installation of the auxiliary swing arm assembly between the side plates of this utility model; Figure 6 This is a schematic diagram of the structure of the auxiliary swing arm assembly of this utility model; Figure 7 This is a schematic diagram of the unfolded cardboard box of this utility model; In the diagram: 1-Frame, 2-Main swing arm, 3-Connecting plate, 4-Secondary swing arm assembly, 5-Carton storage, 6-First telescopic rod, 7-Slide rail, 8-Slider, 9-Second telescopic rod, 10-Side plate, 11-Suction cup, 12-First transmission block, 13-First guide rod, 14-Second guide rod, 15-First connecting rod, 16-Third telescopic rod, 17-Second connecting rod, 18-Fourth telescopic rod, 19-Secondary swing arm body, 20-Second transmission block, 21-Third connecting rod, 22-Support plate, 23-Air guide block. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0014] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0015] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0016] like Figures 1 to 7As shown, an embodiment of this utility model provides a carton opening mechanism for a cigarette packing machine, including: a frame 1, a main swing arm 2, a connecting plate 3, and a secondary swing arm assembly 4. The frame 1 is installed on the ground, and a carton storage 5 is provided on the frame 1. The middle part of the main swing arm 2 is rotatably installed on the frame 1 below the carton storage 5, and one end of the main swing arm 2 is connected to the frame 1 through a first telescopic rod 6. The other end of the main swing arm 2 is equipped with a slide rail 7. The lower part of the connecting plate 3 is slidably installed on the slide rail 7 through a slider 8, and the connecting plate 3 is connected to the main swing arm 2 through a second telescopic rod 9. Side plates 10 are provided on both sides of the connecting plate 3. The lower part of the secondary swing arm assembly 4 is connected to the side plates 10, and suction cups 11 are provided on the upper part of the side plates 10 and the end of the secondary swing arm assembly 4.

[0017] When the carton opening mechanism is working, the fourth telescopic rod 18 extends. Driven by the third connecting rod 21 and the second transmission block 20, the auxiliary swing arm body 19 rotates to be parallel to the connecting plate 3, so as to avoid the auxiliary swing arm assembly 4 colliding with the carton when picking up the carton. Then the first telescopic rod 6 retracts, causing the main swing arm 2 to swing. After one end of the main swing arm 2 rotates, it tilts upward, so that the suction cup 11 on the side plate 10 contacts the carton in the carton magazine 5. Then the air in the suction cup 11 is sucked away through the pipe, thereby stabilizing the carton. The release device in the carton magazine 5 releases the carton, and then the first telescopic rod 6 extends. After the main swing arm 2 rotates to a certain angle, the fourth telescopic rod 18 retracts, while the third telescopic rod 16 extends, causing the auxiliary swing arm body 19 to rotate 180°. This causes the suction cup 11 on the auxiliary swing arm body 19 to press against the cardboard box. After air is drawn out through the negative pressure pipe, the suction cup 11 on the auxiliary swing arm body 19 sucks up the cardboard box. Then, the third telescopic rod 16 retracts, causing the cardboard box to rotate 90°, thus unfolding the cardboard box. After the cardboard box unfolds, the first telescopic rod 6 continues to extend, causing the main swing arm 2 to rotate to the water state. This step can prevent the cardboard box from scraping against other devices when opening the box, thereby avoiding damage to the cardboard box.

[0018] Before picking up the carton, the second telescopic rod 9 is in the extended state, and the connecting plate 3 slides on the slide rail 7, thereby adjusting the contact position between the suction cup 11 and the carton. The second telescopic rod 9 can adjust the contact position between the suction cup and the carton, thus adapting to different sizes of cartons. After changing to different sizes of packaging boxes, the packaging line can quickly adjust the equipment and improve production efficiency.

[0019] Specifically, a first transmission block 12 is provided on the side plate 10. The upper part of the first transmission block 12 is hinged to the side plate 10, and the lower part of the first transmission block 12 is slidably connected to the arc-shaped guide rail on the side plate 10 through the first guide rod 13. A second guide rod 14 is provided on the upper part of the side plate 10. Two first connecting rods 15 are connected between the first guide rod 13 and the second guide rod 14. The first connecting rod 15 is provided with an elongated hole. The first connecting rod 15 is slidably connected to the second guide rod 14 through the elongated hole. One end of the first connecting rod 15 is also hinged to the first guide rod 13. The two sides of the auxiliary swing arm assembly 4 are respectively fixedly connected to the first connecting rod 15. The lower part of the side plate 10 is fixed to the connecting plate 3 by bolts, so that the side plate 10 and the connecting plate 3 form a "U" shaped structure. The first transmission block 12 rotates between the side plates 10, thereby driving the auxiliary swing arm assembly 4 to rotate 90°, so that the auxiliary swing arm assembly 4 can swing to open the carton after it has gripped it, thus completing the opening action. When the auxiliary swing arm assembly 4 swings, the first connecting rod 15 can also slide on the second guide rod 14 through the elongated hole while rotating, so that the auxiliary swing arm assembly 4 can be rotated 90° by using a smaller first transmission block 12, which is conducive to the miniaturization of the equipment. Since the trajectory of the end of the auxiliary swing arm assembly 4 is approximately circular when the auxiliary swing arm assembly 4 swings, and the center of the circular trajectory is close to the corner of the carton, the carton can be smoothly opened by the auxiliary swing arm assembly 4.

[0020] Preferably, the connecting plate 3 is provided with a third telescopic rod 16. The telescopic end of the third telescopic rod 16 is connected to one side of the first transmission block 12 through the second connecting rod 17. After the third telescopic rod 16 extends, one end of the third telescopic rod 16 pushes the first transmission block 12 through the second connecting rod 17, causing the first transmission block 12 to rotate around the hinge point, thereby driving the auxiliary swing arm assembly 4 to rotate. The auxiliary swing arm assembly 4 rotates first, causing the suction cup 11 to pick up the carton. Then the third telescopic rod 16 retracts, causing the auxiliary swing arm assembly 4 to rotate to a state perpendicular to the connecting plate 3, thereby allowing the carton to unfold simultaneously through the suction cup, completing the opening action.

[0021] Specifically, the auxiliary swing arm assembly 4 includes a fourth telescopic rod 18 and an auxiliary swing arm body 19. One end of the fourth telescopic rod 18 is fixedly connected to the first connecting rod 15, and the other end of the fourth telescopic rod 18 is provided with a second transmission block 20. The lower part of the second transmission block 20 is connected to the telescopic end of the fourth telescopic rod 18 through a third connecting rod 21. The auxiliary swing arm body 19 is fixedly connected to the second transmission block 20. When the suction cup picks up the carton from the carton magazine 5 after the main swing arm 2 swings, the fourth telescopic rod 18 extends and can drive the second transmission block 20 to rotate 90° through the third connecting rod 21. At this time, the auxiliary swing arm assembly 4 is parallel to the connecting plate 3, thereby preventing the auxiliary swing arm body 19 from tilting upward and affecting the picking up of the carton. The third telescopic rod 16 and the fourth telescopic rod 18 work together to allow the auxiliary swing arm body 19 to rotate within a range of 180°, realizing actions such as opening the carton and avoiding collisions. Compared with directly using a telescopic rod to swing 180°, the size of the entire carton opening mechanism can be reduced, which is conducive to the miniaturization of the equipment.

[0022] In a preferred embodiment, an air guide block 23 is provided on the upper part of the auxiliary swing arm body 19. The air guide block 23 is hollow inside and is fixed to the end of the auxiliary swing arm body 19. The air guide block 23 is perpendicular to the auxiliary swing arm body 19. The suction cup 11 is fixed on the air guide block 23 and is connected to the inner cavity of the air guide block 23. The air guide block 23 can be connected in parallel with multiple suction cups 11 to better adsorb the carton and complete the opening action.

[0023] Preferably, the first telescopic rod 6 is an electric telescopic rod. Electric telescopic operation can control the swing angle of the main swing arm 2, and the movement is smooth, preventing the main swing arm 2 from moving too fast and hitting the cardboard box 5. The second telescopic rod 9, the third telescopic rod 16, and the fourth telescopic rod 18 are pneumatic telescopic rods. Pneumatic telescopic rods have a simple structure, low procurement cost, and are suitable for simple linear operation control.

[0024] In one specific embodiment, a support plate 22 is provided on the side plate 10, and suction cups 11 are located at the four corners of the support plate 22. The height of the support plate 22 is 1cm to 2cm lower than the height of the suction cups 11. When the cardboard box is sucked up, the support plate 22 plays a supporting role so that the cardboard box can be supported when the cigarettes are packed in the box, and the cardboard box is prevented from deforming.

[0025] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A carton opening mechanism for a cigarette packing machine, characterized in that, include: The frame (1), main swing arm (2), connecting plate (3), and auxiliary swing arm assembly (4) are provided. The frame (1) is installed on the ground and a carton storage (5) is provided on the frame (1). The middle part of the main swing arm (2) is rotatably installed on the frame (1) below the carton storage (5). One end of the main swing arm (2) is connected to the frame (1) through a first telescopic rod (6). The other end of the main swing arm (2) is equipped with a slide rail (7). The lower part of the connecting plate (3) is slidably installed on the slide rail (7) through a slider (8). The connecting plate (3) is connected to the main swing arm (2) through a second telescopic rod (9). Side plates (10) are provided on both sides of the connecting plate (3). The lower part of the auxiliary swing arm assembly (4) is connected to the side plates (10). Suction cups (11) are provided on the upper part of the side plates (10) and the end of the auxiliary swing arm assembly (4).

2. The carton opening mechanism for a cigarette packing machine according to claim 1, characterized in that, The side plate (10) is provided with a first transmission block (12). The upper part of the first transmission block (12) is hinged to the side plate (10). The lower part of the first transmission block (12) is slidably connected to the arc-shaped guide rail on the side plate (10) through the first guide rod (13). The upper part of the side plate (10) is provided with a second guide rod (14). The first guide rod (13) and the second guide rod (14) are connected by two first connecting rods (15). The first connecting rod (15) is provided with an elongated hole. The first connecting rod (15) is slidably connected to the second guide rod (14) through the elongated hole. One end of the first connecting rod (15) is also hinged to the first guide rod (13). The two sides of the auxiliary swing arm assembly (4) are fixedly connected to the first connecting rod (15) respectively.

3. The carton opening mechanism for a cigarette packing machine according to claim 2, characterized in that, The connecting plate (3) is provided with a third telescopic rod (16), and the telescopic end of the third telescopic rod (16) is connected to one side of the first transmission block (12) through the second connecting rod (17).

4. The carton opening mechanism for a cigarette packing machine according to claim 3, characterized in that, The auxiliary swing arm assembly (4) includes a fourth telescopic rod (18) and an auxiliary swing arm body (19). One end of the fourth telescopic rod (18) is fixedly connected to the first connecting rod (15), and the other end of the fourth telescopic rod (18) is provided with a second transmission block (20). The lower part of the second transmission block (20) is connected to the telescopic end of the fourth telescopic rod (18) through a third connecting rod (21). The auxiliary swing arm body (19) is fixedly connected to the second transmission block (20).

5. The carton opening mechanism for a cigarette packing machine according to claim 4, characterized in that, The upper part of the auxiliary swing arm body (19) is provided with an air guide block (23). The air guide block (23) is hollow inside. The air guide block (23) is fixed at the end of the auxiliary swing arm body (19) and is perpendicular to the auxiliary swing arm body (19). The suction cup (11) is fixed on the air guide block (23) and is connected to the inner cavity of the air guide block (23).

6. The carton opening mechanism for a cigarette packing machine according to claim 5, characterized in that, The first telescopic rod (6) is an electric telescopic rod, and the second telescopic rod (9), the third telescopic rod (16), and the fourth telescopic rod (18) are pneumatic telescopic rods.

7. The carton opening mechanism for a cigarette packing machine according to claim 1, characterized in that, The side plate (10) is provided with a support plate (22), and the suction cup (11) is located at the four corners of the support plate (22). The height of the support plate (22) is 1cm to 2cm lower than the height of the suction cup (11).

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